Railway-car-truck construction



J. A. LAMONT. RAILWAY CAR TRUCK CONSTRUCTION.

APPLICATION HLED APR.25, I921.

Patented Sept. 13, 1921.

um ran sI r is JOHN A. ,LAMON.T, .0F CHICAGO, ILLINoIs, Ass renon TO AMERICAN STEEL FOUND- aunsor CHICAGO, ILLINOIS, A conrona'rron 'or NEW JERSEY.

RAILWAY-GABl-TRUCK CONSTRUCTION.

To all whom'z't may concern 7 Be it known thatI, JOHN A. LAMONT, ,a cltizenof theUnited States, residingat Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Railway Car'- Truck Construction, of which the-following is a specification. V I

This invention relates to railway car truck arrangements and more particularly .to

equalizing mechanism in connection with six-wheel car trucks. Y

' One object of the invention is to provide a simple and improved arrangement whereby shocks incident to the starting and stopping of railway cars are prevented from be-' 7 ing taken by the equalizing mechanism.

Another object is to provide'a simple and efiicient equalizing mechanism for six-Wheel car .trucks adapted to meet the various requirements for successful commercial operation. r 1

These and other objects are accomplished by means of the arrangement disclosed on the accompanying sheet of drawings 1nwhich- Figurel is a fragmentaryside elevation of a railway car truck embodying my invention; and,

Fig. 2 is a sectional View taken 1n the planes of the irregular line 22 of F 1g. 1.

The various novel features of the invenend pockets 11 (onl one of which is shown) r for the reception 0 journal boxes 12 and an intermediate pocket (not shown)l"for the reception of a middle journal box. The

general arrangement of these parts is shown in detail in one of my copending a plica' tions Serial No. 433,412 filed Decem er 27,

1920. In the general arrangement the loads are transmitted through transverse bolster members, equalizing levers, and then to the intermediate and end journal boxes.

In the present case it will be noted that the transverse bolster member 13 is mounted within a pocket 14 in the side frame and that the bolster member is mounted directly upon the associated equalizing lever 15.

Specification of L ettersiPatent; Patgntd Sept- 1 3, 1321; '7 Application filed. April 25,1921. Serial No. 464,114. I I

Arm? orrics.

It is desirous that the shocks incident to the starting and stopping ofv the carshould not be taken by the equalizing mechanism,

For example, in the willpass into engagement with the pocket side-walls 16 and all shocks be taken at such po nts, while at the same time permitting the equalizing levers to take a longitudinal movement with respect to the side frame. Topermit the equalizing levers 15 taking this longitudinal movement and not-take any. of the shocks mentioned, the outer ends of the levers 15 are sl-idably mounted or mountv V fed for translatory movement onthe side frame. In this particular instance, the outer end of each of the equalizing levers 15 eX- -tend upwardly and terminates in laterally extending shoe portions 17 within the side walls 18 of the side fra1ne10. Theseshoes rest andslide upon'hard steel wear plates 19 which are mounted on inwardly extend.

ing bracketsQO formed integrally with'the I side frame.v The shoes 17 preferably have ,p 7

their'lower engaging faces convex 1n shape to'permit a given amount of rocking move- .ment of the outer or fulcrumingfend of the lever incident to upward and downward movement of the bolstermembersj13 within the side frame. In this same connection, the

engaging, faces of the shoes 17. and the wear plates 19 are practically in the same horizontal plane with the engagingsurfaces of the bolster member 13 and equalizing lever l5jso that the up and down movement of the.

transverse bolster members 13 will have little or notendency to thrust the said bol ster members into engagement with the side wall 16 of the pocket-14. Any cramping however would be'p're'vented as the result of the sliding movementj'of the shoes 17 of the equalizing leveron the side frame.

By means of this arrangement"therefore,

i it is apparent thatwhenever the car is starttions of the invention falling within the V spirit and scope of the following claims.

of a side frame having a bolster pocket, an

equalizing lever, and a bolster member mounted in' said pocket and supported.

by said lever, one end of said lever being supported by said side frame and having translatory motion thereon to prevent shocks incident to starting and stopping of the car being taken by said'lever.

2. In a railway car truck, the combination of a support, an equalizing'lever, and a bolster operatively associated with such supportand supported by said lever, one end of said lever being supported by said support and having a translatory motion thereon to prevent shocks incident to starting and stopping of the car being taken by said lever.

3. In a railway car truck, the combination of a side frame having a bracket, an equalizing lever slidably mounted on said bracket for permitting longitudinal movement of said equalizing lever with respect to said slde frame to prevent shocks incident to starting and stopping of the car being taken by said lever.

i. In a railway car truck, the combination of a side frame having spaced side walls, an equalizing lever terminating in a pair of shoes within the walls of said side frame and being slidably mounted on said .side frame to permit longitudinal movement of equalizing levers and prevent longitudinal operating shocks being taken by the latter.

5. In a railway carftruclg'the combination of aside frame having arbolster pocket and spaced sidewalls with inwardly extending brackets, an equalizing lever, and a bolster member mounted insaid socketj and supported by said lever, one end of said lever terminating in lateral extending shoes slidably mounted on said brackets to permit longitudinal movement of said equalizing lever to prevent said lever from taking longitudinal shocks incident to car operation.

Signed at Chicago, Illinois, this 18th day of April, 1921. I

V 7 JOHN A. LAMONT. 

